Interesting points. I chalk this up to Lucas trying to make the Star Wars universe more vast than what we've previously seen because, we are in the golden age of the Republic where the interactions of all the civilizations is normal.
But, I do see where you're coming from. The Kaminoans are cool as hell. The Trade Federation is a joke, but I think that's the point. Dex, I can go back and forth on. I mean, it's cool to see Obi-Wan have a hint of a life outside the Jedi Order, yet at the same time, I wanted Obi-Wan to get the info quicker to move the story quicker. (The way Episode II is edited still pisses me off. I'll never let Burtt off the hook for how that film is put together, eventhough it's my 3rd favorite Star Wars film.) I'm actually a Jar Jar guy but I can understand everyone's problems with him. I like Grevious only because he's a plot point for the Clone Wars aspect of the story. But yes, the humans are always the best.